As per some inside information and few hints from the Xiaomi officials, it looks like Xiaomi will be launching Xiaomi Mi Max on 30th June in India. Earlier today Hugo Barra, the Global VP of Xiaomi, wrote on his Twitter handle:

And this tweet which mentions something 'BIG' is coming hints Xiaomi Mi Max which was officially launched at China last month. So there's a high chance that the Chinese vendor may release the Mi Max phablet into the Indian market on June 30th.

In China Mi Max has two variants with two different processors, one has the hexa core snapdragon 650 and other has the octa core Snapdragon 652. While we are not sure but you may expects seeing a snapdragon 652 in India.
Camera:

The Mi max will have a 16 MP f 2.0 lens with Dual tone flash and a 5 MP front facing camera which will also sport a wide angle lens.
Operating System:

Like all other newly launched smart phones Mi Max will have Android 6.0 Marshmallow inside with Xiaomi's own MIUI 8 on top of it.
Connectivity: